there were allegations that nelson serrano had stolen a quarter of a million dollars. after threatening lawsuits and one shouting match too many, the founding partners, dosso and gonsalves, fired serrano and his son and then they changed the locks to the office. but serrano didn't leave quietly. within weeks of being ousted, he tried to force his way back into the building. partner george gonsalves called the cops. >> 911 emergency. do you need police, fire or ambulance? >> someone's breaking a door down. >> is it someone you know or a former employee or what? >> yes, former employee. >> okay, what is his name? >> nelson serrano. >> reporter: then six months later, december 3, 1997, came another 911 call from erie manufacturing. four dead, shot execution style. given serrano's stormy relationship with his partners, homicide detectives asked him to give a taped statement the day